Automatic coupling and central buffer device for railway-cars.



A. A. ROSENGREN. AUTOMATIC COUPLING AND CENTRAL BUFFER DEVICE FOR RAILWAY CARS.

APPLICATION FILED JUNE 8, 1906.

921,564. Patented May 11, 1909.

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I I J? WITNESSES I A. A.. BOSENGRBN. AUTOMATIC COUPLING AND CENTRAL BUFFER DEVICE FOR RAILWAY CARS.

APPLICATION FILED JUNE 8, 1906. 921,554, Patented May 11, 1909.-

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serves as a central buffer. device can be such that,

I ANDERS ANDERSSON ROSENGREN, OF MALMO, SWEDEN.

AUTOMATIC cournme AND CENTRAL BUFFER" nEvIcn iron RAILWAY-CARS.

Specification of Letters Patent.

Patented May 11, 1909.

Application filed June 8,1906. Serial No 320,866.

To all whom it may concern:

Be it known that I, ANDERs ANDERssoN RosENGREN, a subject of the King of Sweden, and resident of 86 Sodra Forstadsgatan, Mahno, in the Kingdom of Sweden ,engineer, have invented certain new and useful Improvements in Automatic Cou ling and Gentral Buffer Devices for .Railway-Cars, of which the following is a specification, reference being made to the accompanying drawin s.

lhe chief object of this invention is to brin about an automatic couplin and central buffer device that can be emp oyed both at such railway cars which ateach end are provided'with two buffers (cars arranged according to the two buffer system), in which case the said device chiefly serves to automatically cou le two cars whichcollide with each other, a though it can also serve, together with the ordinarybuifers, toreceive the pressure of collision andafter the removal of onevof the chief parts of the deviceat such railway cars in which'the pressure of'collision at each end of the car ISIG- ceived b a single buffer situated in the lon- 'gitudina central plane of the car (cars arranged according to the central buffer sys-. tem), in which latter case the present device serves both toautomatically cou letwo cars that collide with each other an to receive the whole pressure ofcollision, i. a, it Inaddition, the at cars arranged accordin to the two buffers stem, it can be emplrzi'yed for the coupling 0 a car, which is provi ed with the said device, to a car rovided only with a so-calledscrew coup ing.

And, fina 1y, this device is so constructed that its coupling contrivance can be acted upon from either of the sides of the car, so that, from either side, it'is possible to uncouple two cars which are coupled together, or to bring about such a position of t e said contrivance that two cars that come into collision with each otherdo not become coupled to ether. 1

he device in question consists of three chief parts which, whenthe device is used at a car arranged accordin to the two buffer s stem, lie after each ot er in the longituinal central plane of the car and are joined to each other m such a waythat they can be disconnected from each other. Of these chief partsthe one is suitably arranged for the car which is pose, and when it is at the same time to serve to automatically couple cars, then this part (which in the following s ecification is called the cou ling piece or uffer piece) is ri idly j oine to the next chief part (which in t e following specification is called the intermediate piece) which latter part or piece, when the device is such that a car which is rovided with'it can be coupled to a rovided with a screw coupling only, forms t e fastening for a screw cou ling and a hook belon ing to the same. n this use of the device i. e., at cars arranged according'to the two buffer system,) the intermediate piece inlits turn 1s ivotally attached to the third chief part 0 the device, which third part is connected tothe car in such a way that the part can be moved in automatic coupling of two cars that collide I both directions'of the longitudinal direction of the car, .while exerting an elastic pressure on the car. r

1 The connection between the intermediate piece and the chief piece last referred to (which in the following specification is called the draw piece) is such, that the inter- .mediate piece, aswell as the conphng piece,

as this latter piece is rigidly connected to the intermediate piece, can swing in a horizontal plane. When the device is to serve both to automatically couple together cars and as a central buffer (2'. e., is to be used at cars arranged according to the central buffer system), the intermediate piece is removed from the device and the coupling piece is connected direct to the drawpieee in such a way that the former piece can swing in a horizontal lane.

he rigid. connection between the coupling piece and the intermediate piece can be eliminated, so that this first-named piece can be swung sidewise and downward, whereby the screw coupling and the hook, which are placed on the intermediate piece, are brought into position to cooperate with corresponding parts of another car. e

In the accompanying drawings there is shown as an'example an automatic coupling and central buffer device which is constructed in accordance with this invention and is intended for all the three-ways of employment described above.

In Figs. 1 and 2 the device is shown as seen from the one side and in plan respectively,

and adapted so as to serve, at a car arranged according to the two buffer system, for the automatic coupling of cars and also for reeeiving a part of the pressure of collision.

In Fig. 3 the device is shown, as seen from the one side, to be adapted to cooperate on a -car arranged according to the system just named, with a screw coupling and a hook belonging to the same, on another car.

In Fig. 4 the device is shown, as seen in plan, to be adapted to serve, on a car arranged according to. the central bufier system, both to automatically -couple the said car to anothercar, and as a central buffer.

The automatic coupling contrivance of this device can be carried out in any suitable manner. In the present examplethe contrivance is shown constructed like a so-called also of a projection 2, intended to readjust the hook of an approaching claw from its open position to its coupling position. The hook -1 is pivotally mounted in a head 3, from which the projection 2 extends. The claw head 3 is carried by a stem 4; the claw I (i. e., the claw head, the hook and the prothroug pivot 19.

jection), which is also arranged so as to re ceive the pressure of collision, and the stem form the above-mentioned coupling piece or buffer piece.

The stem 4 is pivotally connected to the intermediate piece 16 by means of a vertical This pivot does not pass through the intermediate piece itself, but through a part 20 which is screwed into the said piece and forms a hook which, when the device. is used for the automatic coupling of cars arranged according to the two buiier system, lies in arecess in the inner end of the stem 4. At the just-mentioned use of the device, the

coupling piece and the intermediate piece.

are ri idly attached to each other in some suitab e way, e. g., by means of a pin 21, which passes through holes in the stem and the ga of the hook 20, the cross section of the in eing adjusted to the form of the gap. he pivot 19 also forms the axle of rotation of a screw cou ling 23 which, in the use now in question, is hung on the buffer beam b means of a suitable support 24. When t e screw coupling is to be used, the lpin 21 is drawn up out of the stem 4 and the 00k 20; the coupling piece is swung sidewise in the direction indicated by the arrow in Fig. 2 and is, simultaneously or afterward, swung downward (at a rotation of the threaded hook stem in the intermediate piece), so that the parts will come to assume serve as abutments for the cross the position shown in. Fig. 3 after which the car can be coupled with a car which is provided with a screw coupling only.

On the sides of the intermediate piece 16 there are lugs 25, attached to springs 26 which with their inner ends rest on the outer sides of the beams 27 which, as usual, ,run in the vicinity of the longitudinal central plane of the car. The springs 26 tend to keep the intermediate iece (and the coupling piece which is rigid y attached to it) in its central position, at the same time that they permit the intermediate iece (and the coupling piece) to perform t e requisite lateral movements. The connection between the intermediate piece' and the springs 26 must be such, that the intermediate piece can freely move in both directions in the longitudinal direction of the car.

The intermediate piece 16 is.by means of a vertical pivot 29 connected to the third chief part of this device, the draw piece 30. This piece is surrounded by a spring 31 which, while exerting an elastic pressure on the car, permits the draw piece and theparts connected with it to move in both directions in the longitudinal direction of the car. The spring 31 is situated between cross pieces 32 and 33 on the draw piece, the one, 32, of which piec'es rests against a shoulder on the draw piece (see Figs. 1 and 3), while the other, 33, is retained on the draw piece by means of a pin 34. The cross pieces 32 and 33 act on ridges 35 and 36 which face each other, these ridges being arranged on the inner sides of plates 37 fastened on the inner sides of the beams 27. On theinner sides of the plates 37, between the ridges 35 and 36, there are also other ridges 38, which ieces 32 and 33, if the ridges 35 or 36 should reak.

When the device is to be used as a car arranged according to the central bufler system, i. e., both for the automatic coupling of cars and as a central buffer, the intermediate piece 16 is removed and the couplin piece, or the stem 4 respectively, is connectec direct tothe draw piece 30 by means of the pivot 29 (see Fig.4). The arts must be so proportioned that the coup ing head 3 will come to be situated at the prescribed distance outside the bufier beam. As the stem 4 is now to be acted upon by the springs 26, but as it is unsuitable to have the parts of attachment (the lugs), necessar for the purpose, arranged on the stem, t iere is inserted into that s ace in the stem which was previously occupied by the hook 20, a piece 39 which Clasps the stem in its transverse direction, and is provided with lugs 40 intended, like the lugs 25 on the intermediate piece 16, to be attached to the springs 26.

As a substitute for the arm 17, which is removed with the intermediate piece 16, the pin 21 can be employed, this pm being arranged in some suitable way so as to serve for this purpose; said pin is pushed down through the holes arranged for it in the stem 4 and through a corresponding hole or recess in the lug piece 39, after which the middle part of the maneuvering shaft is mounted in the same.

It is clear that an automatic coupling and central buffer device constructed in accordance with this invention can, while still retaining the characteristic features of the invention, be carried out in several other ways than the one described. Thus, for example, the draw piece can consist of the draw bar 9 (extending along the whole length of the carriage) at present used in railway cars. It is also clear that such'a device can from the beginning be made only for a car arranged according to the two bufier system (with or without a device for coupling onto a screw coupling, in which latter case the coupling piece and the intermediate piece can consist of one piece only), or only for a car arranged according to the central buffer system (in which case it is superfluous to manufacture the intermediate piece).

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

In combination with a car, a draw bar comprising a draw piece, an intermediate piece pivotally and detachably connected therewith, a hook having its shank screwing in said intermediate piece, a screw coupling carried by the intermediate piece, a coupling head pivoted to the intermediate piece and having an opening adapted-to register with the hook and a pin extending through said opening and through the hook.

In witness whereof I have hereunto set my hand in presence of two witnesses.

ANDERS ANDERSSON ROSENGHEN. Witnesses:

E. HEDEWSKEY, A. LARSON. 

